hacmp in a 7 node configuration ?


 
Thread Tools Search this Thread
Operating Systems AIX hacmp in a 7 node configuration ?
# 8  
Old 08-30-2009
Hi Shockneck,

many many thanks for your reply. You have answered all my questions so far.
- DBAs don't have root access to the cluster
- only 2 SAs will have root access - me and my backup - and we will both build the cluster together
- we have a very strong change control in place and our documentation is pretty good
- we are aware this is no 24/7/365 solution - that is why we have an independant DR recovery site and a uat environment for testing
- the A1-A5 servers + 1 spare are running right now in a VCS cluster on AIX ... our engineering doesnt support it past 9/2010 - that is basically why we're going to move it to hacmp
- we will have almost a year for build and testing
- we have a weekend greenzone of 36 hrs for the environment and always patch all nodes in any cluster at the same time
- we will have hartbeat on disk on at least 2 different mini-devicegroups as you suggested

Once more thank you for all your suggestions - I will keep you in the loop if problems arise as I can see you don't have any major objection Smilie

Thank you in addition for the EMC bug tip - this explains why we have the problems on the 2 node clusters ... our SAN engineering is probably aware but has not yet certified the fix - I will ask them on monday for the fix.

Kind regards
zxmaus
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

Crash dump and Panic message : RSCT Dead Man Switch Timeout for HACMP; halting non-responsive node

Dear all i have two aix system -Model : P770 -OS version: AIX 6.1 -patch level : 6100-07-04-1216 -ha version : HACMP v 6.1.0.8 -host : A, B last Wednesday, my B system suddenly went down with crash dump. after 1 minute, A system went down with crash dump. I checked the dump of A-system... (6 Replies)
Discussion started by: tomato00
6 Replies

2. AIX

HEA configuration on managed node.

Folks, Please have a look to the attached screenshot from my managed node's HEA configuration option page. I would like to know - what does "Flow Control Enabled" checkbox help us with if opted for? Thanks! -- Souvik (3 Replies)
Discussion started by: thisissouvik
3 Replies

3. AIX

How to check if HACMP is running on AIX node?

Hello AIX experts, I have few queries and appreciate if you could help me with them. 1. How to check if HACMP (or any other AIX OS cluster) is installed 2. How to check if HACMP (or any other AIX OS cluster) is running 3. how to check which Oracle DB instance is running on it 4. how to... (1 Reply)
Discussion started by: prvnrk
1 Replies

4. AIX

HACMP two-node cluster with two SAN storages mirrored using LVM

HACMP two-node cluster with mirrored LVM. HACMP two-node cluster with two SAN storages mirrored using LVM. Configured 2 disk heartbeat networks - 1 per each SAN storage. While performing redundancy tests. Once one of SAN storage is down - cluster is going to ERROR state. What are the guidelines... (2 Replies)
Discussion started by: OdilPVC
2 Replies

5. AIX

Should GPFS be configured before/after configuring HACMP for 2 node Cluster?

Hi, I have a IBM Power series machine that has 2 VIOs and hosting 20 LPARS. I have two LPARs on which GPFS is configured (4-5 disks) Now these two LPARs need to be configured for HACMP (PowerHA) as well. What is recommended? Is it possible that HACMP can be done on this config or do i... (1 Reply)
Discussion started by: aixromeo
1 Replies

6. AIX

Service IP issue in HACMP, Working with only one node

Hi, I have a running HACMP Cluster with two nodes. Its working in active/passive mode. (i.e Out of the two nodes in the cluster one will be active and the other one will be on standby. If first node fails the other takes over) 1. There is a Service IP associated with the cluster. Now the... (2 Replies)
Discussion started by: aixromeo
2 Replies

7. AIX

HACMP does not start db2 after failover (db2nodes not getting modified by hacmp)

hi, when I do a failover, hacmp always starts db2 but recently it fails to start db2..noticed the issue is db2nodes.cfg is not modified by hacmp and is still showing primary node..manually changed the node name to secondary after which db2 started immediately..unable to figure out why hacmp is... (4 Replies)
Discussion started by: gkr747
4 Replies

8. AIX

HACMP 5.4.1 Two-Node-Cluster-Configuration-Assistant fails

This post just as a follow-up for thread https://www.unix.com/aix/115548-hacmp-5-4-aix-5300-10-not-working.html: there was a bug in the clcomdES that would cause the Two-Node-Cluster-Configuration-Assistant to fail even with a correct TCP/IP adapter setup. That affected HACMP 5.4.1 in combinatin... (0 Replies)
Discussion started by: shockneck
0 Replies

9. AIX

Which files can be deleted in /usr in an aix hacmp node?

Hi Can ony one advise which files can be deleted in /usr in an aix hacmp node ? Im new to aix and Im not sure which files can be deleted ? #df -g /usr Filesystem GB blocks Free %Used Iused %Iused Mounted on /dev/hd2 7.00 1.00 86% 67013 22% /usr ... (4 Replies)
Discussion started by: samsungsamsung
4 Replies

10. AIX

Node Switch Reasons in HACMP

Hi Guys, I have two nodes clustered. Each node is AIX 5.2 & they are clustered with HACMP 5.2. The mode of the cluster is Active/Passive which mean one node is the Active node & have all resource groups on it & the 2nd node is standby. Last Monday I noted that all resource groupes have been... (2 Replies)
Discussion started by: aldowsary
2 Replies
Login or Register to Ask a Question
cmdeleteconf(1m)														  cmdeleteconf(1m)

NAME
cmdeleteconf - Delete either the cluster or the package configuration SYNOPSIS
cmdeleteconf [-f] [-v] [-c cluster_name] [[-p package_name]...] DESCRIPTION
cmdeleteconf deletes either the entire cluster configuration, including all its packages, or only the specified package configuration. If neither cluster_name nor package_name is specified, cmdeleteconf will delete the local cluster's configuration and all its packages. If the local node's cluster configuration is outdated, cmdeleteconf without any argument will only delete the local node's configuration. If only the package_name is specified, the configuration of package_name in the local cluster is deleted. If both cluster_name and pack- age_name are specified, the package must be configured in the cluster_name, and only the package package_name will be deleted. cmdelete- conf with only cluster_name specified will delete the entire cluster configuration on all the nodes in the cluster, regardless of the con- figuration version. The local cluster is the cluster that the node running the cmdeleteconf command belongs to. Only a superuser, whose effective user ID is zero (see id(1) and su(1)), can delete the configuration. To delete the cluster configuration, halt the cluster first. To delete a package configuration you must halt the package first, but you do not need to halt the cluster (it may remain up or be brought down). To delete the package VxVM-CVM-pkg (HP-UX only), you must first delete all packages with STORAGE_GROUP defined. While deleting the cluster, if any of the cluster nodes are powered down, the user can choose to continue deleting the configuration. In this case, the cluster configuration on the down node will remain in place and, therefore, be out of sync with the rest of the cluster. If the powered-down node ever comes up, the user should execute the cmdeleteconf command with no argument on that node to clean up the config- uration before doing any other Serviceguard command. Options cmdeleteconf supports the following options: -f Force the deletion of either the cluster configuration or the package configuration. -v Verbose output will be displayed. -c cluster_name Name of the cluster to delete. The cluster must be halted already, if intending to delete the cluster. -p package_name Name of an existing package to delete from the cluster. The package must be halted already. There should not be any packages in the cluster with STORAGE_GROUP defined before having a package_name of VxVM-CVM-pkg (HP-UX only). RETURN VALUE
Upon completion, cmdeleteconf returns one of the following values: 0 Successful completion. 1 Command failed. EXAMPLES
The high availability environment contains the cluster, clusterA , and a package, pkg1. To delete package pkg1 in clusterA, do the following: cmdeleteconf -f -c clusterA -p pkg1 To delete the cluster clusterA and all its packages, do the following: cmdeleteconf -f -c clusterA AUTHOR
cmdeleteconf was developed by HP. SEE ALSO
cmcheckconf(1m), cmapplyconf(1m), cmgetconf(1m), cmmakepkg(1m), cmquerycl(1m). Requires Optional Serviceguard Software cmdeleteconf(1m)